package com.wjh.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;

import java.util.concurrent.TimeUnit;

@Service
public class PaymentService {

    public String paymentInfo_ok(Integer id) {
        return "线程池： " + Thread.currentThread().getName()+ " paymentInfo_ok , id  " + id + "\t" + "O(∩_∩)O哈哈~";
    }

    @HystrixCommand(fallbackMethod = "paymentInfo_timeoutHandler", commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value = "5000") //定义超时时间峰值
    })
    public String paymentInfo_timeout(Integer id) {
        int timeNumber  = 3000;
        try {
            TimeUnit.MILLISECONDS.sleep(timeNumber);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
//        int age = 10 /0;
        return "线程池： " + Thread.currentThread().getName()+ " paymentInfo_timeout , id  " + id + "\t" + "O(∩_∩)O哈哈~,   耗时（毫秒）" + timeNumber;
    }

    public String paymentInfo_timeoutHandler(Integer id){
        return "线程池： " + Thread.currentThread().getName()+ " 8001系统繁忙或运行出错！请稍候再试！  \t o(╥﹏╥)o";
    }



    //---------------------服务熔断------------------//


    @HystrixCommand(fallbackMethod = "paymentCircuitBreak_fallback", commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled", value = "true"), // 是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "10"), // 请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds", value = "10000"), // 时间窗口期
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "60") // 失败率达到多少后跳闸
    })
    public String paymentCircuitBreak(Integer id){
        if (id < 0){
            throw new RuntimeException("----id不能为负数！");
        }
        String s = IdUtil.simpleUUID();
        return Thread.currentThread().getName() + "\t" + "调用成功，流水号为："+ s;
    }
    public String paymentCircuitBreak_fallback(Integer id){
        return "id不能为负数，请稍候再试！o(╥﹏╥)o";
    }
}
